Use intent and Uri to interact with you...- 【多媒体打包格式详解】-MP4...- JQuery Mobile入门——瓜分列表项

当前位置: 编程技术>移动开发

本页文章导读:

▪Use intent and Uri to interact with your anroid device, Use intent and Uri to interact with your anroid device,.1. Show a web page. Uri uri= Uri.parse("Your URL wana navigate"); Intent intent = new Intent(Intent.ACTION_VIEW, uri); startActivity(intent); 2. Show position on the map Uri uriLocaltionO.........

▪ 【多媒体打包格式详解】-MP4【3】【多媒体封装格式详解】---MP4【3】 2.2.2 Media Box Box Type: ‘mdia’ mdia box 结构十分复杂。来个例子。 2.2.2.1 Media Header Box Box Type: ‘mdhd’ aligned(8) class MediaHeaderBox extends FullBox(‘mdhd’, version,.........

▪ JQuery Mobile入门——瓜分列表项 JQuery Mobile入门——分割列表项1、分割列表项，只需在分割的位置添加一个<li>元素，并将该元素的data-role属性值设为list-divider，表示该<li>元素是一个分割列表项。在默认情况下，普.........

[1]Use intent and Uri to interact with your anroid device,

来源: 互联网发布时间: 2014-02-18

Use intent and Uri to interact with your anroid device,.
1. Show a web page.
Uri uri= Uri.parse("Your URL wana navigate");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);

2. Show position on the map
Uri uriLocaltionOnGPS = Uri.parse("geo:[coordinate.x],[coordinate.y]");
Intent intent = new Intent(Intent.ACTION_VIEW, uriLocaltionOnGPS);
startActivity(intent);

3. Phone call
Uri uri = Uri.parse("tel:Tel number you wana call");
Intent intent = new Intent(Intent.ACTION_DIAL, uri);
startActivity(intent);

4. Phone Call directly
Uri uri = Uri.parse("tel:Tel number you wana call");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);

5 Uninstall application
Uri uri = Uri.fromParts("package", "xxx", null);
Intent intent = new Intent(Intent.ACTION_DELETE, uninstallUri);
startActivity(intent);

6. Install app
Uri uri = Uri.fromParts("package", "xxx", null);
Intent intent = new Intent(Intent.ACTION_PACKAGE_ADDED, uri);
startActivity(intent);

7. Play media file
Uri uri = Uri.parse("file:///sdcard/Music/1.mp3");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);

8. Send mail to
Uri emailUri = Uri.parse("mailto:xxxx@gmail.com");
Intent intent = new Intent(Intent.ACTION_SENDTO, emailUri);
startActivity(intent);

9 Send mail
Intent intent = new Intent(Intent.ACTION_SEND);
String[] tos = { "xxxx@gmail.com" };
String[] ccs = { "xxxx@gmail.com" };
intent.putExtra(Intent.EXTRA_EMAIL, tos);
intent.putExtra(Intent.EXTRA_CC, ccs);
intent.putExtra(Intent.EXTRA_TEXT, "body");
intent.putExtra(Intent.EXTRA_SUBJECT, "subject");
intent.setType("message/rfc882");
Intent.createChooser(intent, "Choose Email Client");
startActivity(intent);

10. Send SMS
Uri uri = Uri.parse("tel:Phone number");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
intent.putExtra("sms_body", "Mail content");
intent.setType("vnd.android-dir/mms-sms");
startActivity(intent);

11. Send SMS directly
Uri smsToUri = Uri.parse("smsto://Phone number");
Intent intent = new Intent(Intent.ACTION_SENDTO, smsToUri);
intent.putExtra("sms_body", "yyyy");
startActivity(intent);

12. Send Ritch SMS
Uri uri = Uri.parse("content://media/external/images/media/23");
Intent intent = new Intent(Intent.ACTION_SEND);
intent.putExtra("sms_body", "yyyy");
intent.putExtra(Intent.EXTRA_STREAM, uri);
intent.setType("image/png");
startActivity(intent);

[2] 【多媒体打包格式详解】-MP4【3】

来源: 互联网发布时间: 2014-02-18

【多媒体封装格式详解】---MP4【3】
2.2.2 Media Box

Box Type: ‘mdia’

mdia box 结构十分复杂。来个例子。

2.2.2.1 Media Header Box Box Type: ‘mdhd’

aligned(8) class MediaHeaderBox extends FullBox(‘mdhd’, version, 0) {
if (version==1) {
unsigned int(64) creation_time;
unsigned int(64) modification_time;
unsigned int(32) timescale;
unsigned int(64) duration;
} else { // version==0
unsigned int(32) creation_time;
unsigned int(32) modification_time;
unsigned int(32) timescale;
unsigned int(32) duration;
}
bit(1) pad = 0;
unsigned int(5)[3] language; // ISO-639-2/T language code
unsigned int(16) pre_defined = 0;
}

Field

Type

Comment

box size

box大小

box type

box类型

version

box版本，0或1，一般为0。

creation time

创建时间（相对于UTC时间1904-01-01零点的秒数）

modification time

修改时间

time scale

文件媒体在1秒时间内的刻度值，可以理解为1秒长度的时间单元数

一般情况下视频的都是90000

duration

该track的时间长度

language

媒体语言码

pre-defined

2.2.2.2 Handler Reference Box

Box Type: ‘hdlr’

从hdlr 这个box里面，我们可以获得这个track的类型信息。

aligned(8) class HandlerBox extends FullBox(‘hdlr’, version = 0, 0) {
unsigned int(32) pre_defined = 0;
unsigned int(32) handler_type;
const unsigned int(32)[3] reserved = 0;
string name;
}

Field

Type

Comment

box size

box大小

box type

box类型

version

box版本，0或1，一般为0。

flags

pre-defined

handler_type

‘vide’ Video track

‘soun’ Audio track

‘hint’ Hint track

reserved

name

string

字符串 track type name

例子

00 00 00 2168 64 6C 7200 00 00 00 00 00 00 00 ; ...!hdlr........

76 69 64 65 00 00 00 00 00 00 00 00 00 00 00 00 ; vide............

上面的例子可知track 的类型是 ‘vide’ 这是个video track

2.2.2.3 Media Information Box

Box Type: ‘minf’

minf 里包含着一系列的box。里面是track有关的特征信息。

一般情况minf 包含：Media Information Header Boxes、Data Information Box(dinf)、Sample Table Box。

Media Information Header Boxes 根据类型分‘vmhd’, ‘smhd’, ’hmhd’, ‘nmhd’

2.2.2.3.1 Media Information Header Boxes

Box Types: ‘vmhd’, ‘smhd’, ’hmhd’, ‘nmhd’

Video Media Header Box(vmhd)

aligned(8) class VideoMediaHeaderBox
extends FullBox(‘vmhd’, version = 0, 1) {
template unsigned int(16) graphicsmode = 0; // copy, see below
template unsigned int(16)[3] opcolor = {0, 0, 0};
}

Field

Type

Comment

box size

box大小

box type

box类型

version

box版本，0或1，一般为0。

flags

graphicsmode

specifies a composition mode for this video track, from the following enumerated set,

which may be extended by derived specifications:

copy = 0 copy over the existing image

opcolor

2*3

is a set of 3 colour values (red, green, blue) available for use by graphics modes

例子：

00 00 00 14 76 6D 68 640000 00 01 00 00 00 00 ; ....vmhd........

00 00 00 00 ; ....

Sound Media Header Box(smhd)

aligned(8) class SoundMediaHeaderBox
extends FullBox(‘smhd’, version = 0, 0) {
template int(16) balance = 0;
const unsigned int(16) reserved = 0;
}

Field

Type

Comment

box size

box大小

box type

box类型

version

box版本，0或1，一般为0。

flags

balance

立体声平衡，[8.8]格式值，一般为0，-1.0表示全部左声道，1.0表示全部右声道

reserved

例子：

00 00 00 10 73 6D 68 64 00 00 00 0000 0000 00 ; ....smhd........

Hint Media Header Box(hmhd)

aligned(8) class HintMediaHeaderBox
extends FullBox(‘hmhd’, version = 0, 0) {
unsigned int(16) maxPDUsize;
unsigned int(16) avgPDUsize;
unsigned int(32) maxbitrate;
unsigned int(32) avgbitrate;
unsigned int(32) reserved = 0;
}

2.2.2.3.2 Data Information Box

Box Type: ‘dinf’

dinf 里面包含的是Data Reference Box 可能的类型：‘url ‘, ‘urn ‘, ‘dref’

aligned(8) class DataEntryUrlBox (bit(24) flags)
extends FullBox(‘url ’, version = 0, flags) {
string location;
}
aligned(8) class DataEntryUrnBox (bit(24) flags)
extends FullBox(‘urn ’, version = 0, flags) {
string name;
string location;
}
aligned(8) class DataReferenceBox
extends FullBox(‘dref’, version = 0, 0) {
unsigned int(32) entry_count;
for (i=1; i • entry_count; i++) {
DataEntryBox(entry_version, entry_flags) data_entry;
}
}

未完待续。。。。。

接下来要把里面的真实数据流搞出来。

[3] JQuery Mobile入门——瓜分列表项

来源: 互联网发布时间: 2014-02-18

JQuery Mobile入门——分割列表项

1、分割列表项，只需在分割的位置添加一个<li>元素，并将该元素的data-role属性值设为list-divider，表示该<li>元素是一个分割列表项。在默认情况下，普通列表项的主题颜色为浅灰色，分割列表项的主题颜色为蓝色。

2、示例代码：

<!DOCTYPE HTML >
<HTML>
<TITLE> New Document </TITLE>
<meta name="viewport" content="width=device-width,initial-scale=1"/>
<link href="/blog_article/Css/jquery.mobile-1.2.0.min.css" rel="Stylesheet" type="text/css"/>
<script src="/blog_article/Js/jquery-1.8.3.min.js" type"text/javascript"></script>
<script src="/blog_article/Js/jquery.mobile-1.2.0.min.js" type="text/javascript"></script>
</HEAD>
<BODY>
<div data-role="page">
<div data-role="header"><h1>头部栏</h1></div>
<ul data-role="listview" >
<li data-role="list-divider">图书 </li>
<li><a href="#">计算机</a></li>
<li><a href="#">社科</a></li>
<li><a href="#">文艺</a></li>
<li data-role="list-divider">音乐 </li>
<li><a href="#">流行</a></li>
<li><a href="#">摇滚</a></li>
</ul>
</div>
</BODY>
</HTML>

3、效果图预览：